MapQuest has a couple of big announcements this week. First up, their new GeoRSS Embeddable Maps allow web publishers to add maps to their sites that feature locations they wish to share. Let's say you have a blog about coffee. Perhaps you create a map sharing your favorite local coffee shops. The GeoRSS Embeddable Maps work with online services that provide a feed of location data. Such services include sites like Flickr, Yelp, Brightkite or When.com.